<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="sse">
        <a href="javascript:WebSocketTest()">运行 WebSocket</a>
     </div>
</body>
<script type="text/javascript">
    function WebSocketTest()
    {
       if ("WebSocket" in window)
       {
          alert("您的浏览器支持 WebSocket!");
          
          // 打开一个 web socket
          var ws = new WebSocket("ws://192.168.1.4:8888");
           
          ws.onopen = function()
          {
             // Web Socket 已连接上，使用 send() 方法发送数据
             ws.send("发送数据");
             alert("数据发送中...");
          };
           
          ws.onmessage = function (evt) 
          { 
             var received_msg = evt.data;
             alert("数据已接收...");
          };
           
          ws.onclose = function()
          { 
             // 关闭 websocket
             alert("连接已关闭..."); 
          };
       }
       
       else
       {
          // 浏览器不支持 WebSocket
          alert("您的浏览器不支持 WebSocket!");
       }
    }
 </script>
</html>